Browsing NTNU Open by Author "Lee, Shenae"
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A new design concept of Blowout Preventer for decision support
Lee, Shenae; Lundteigen, Mary Ann; Paltrinieri, Nicola; Liu, Yiliu; Rød, Magne; Dale, John (Chapter, 2017)The Blowout Preventer (BOP) system is used for controlling blowout risks in drilling operations. The system is implemented to shut down an oil and gas well when the well fluids have entered the wellbore. All BOP systems ... -
An Approach to Update the Failure Rates of Safety Barriers Based on Operating Experience
Lee, Shenae; Khakzad, Nima; Schmitz, Peter; Reniers, Genserik; Håbrekke, Solfrid; Paltrinieri, Nicola (Peer reviewed; Journal article, 2022)Hazardous events in process plants like the leakage of dangerous substances can result in severe damage, and such an event is often defined as the TOP event of a fault tree analysis (FTA) in a quantitative risk analysis. ... -
Digital Twin Concept for Risk Analysis of Oil Storage Tanks in Operations: a Systems Engineering Approach
Lee, Shenae; Haskins, Cecilia; Paltrinieri, Nicola (Peer reviewed; Journal article, 2022)This paper presents an approach to develop a risk monitoring tool for oil storage facilities. The suggested approach is derived from the existing dynamic risk analysis (DRA) methods and the digital twin concepts. One of ... -
Dynamic Risk Analysis from the Perspective of Life Cycle Approach in Iec 61508 and Iec 61511
Lee, Shenae; Lundteigen, Mary Ann; Paltrinieri, Nicola (Peer reviewed; Journal article, 2021)Dynamic risk analysis (DRA) aims to provide updated risk levels during operations of a hazardous facility. One of the main objectives of performing a DRA is to support day-to-day operational decisions, primarily for ... -
Guidelines for standardised classification and failure reporting for safety equipment in the petroleum industry, Ver 04
Hauge, Stein; Håbrekke, Solfrid; Lundteigen, Mary Ann; Lee, Shenae; Ottermo, Maria Vatshaug (Research report, 2023)This document provides guidance on how to report and classify failure and maintenance data for safety equipment, as a basis for improved follow-up and future automation. Standardised equipment grouping, equipment properties ... -
Information model for functional safety
Hauge, Stein; Lundteigen, Mary Ann; Ottermo, Maria Vatshaug; Lee, Shenae; Petersen, Stig (Research report, 2023)A main objective of this report has been to contribute toward further digitalisation and standardisation of the petroleum industry. In particular, the report explores: • How ideas from Industry 4.0 and the AAS (asset ... -
Modelling hazardous event scenarios for decision support
Lee, Shenae; Liu, Yiliu; Paltrinieri, Nicola (Chapter, 2017)Quantitative risk analysis has been a successful tool to support decision-making related to the design of technical (safety) barriers. A quantitative risk model may comprise a combination of event trees and fault trees, ... -
Potential for automated follow-up of safety equipment
Lee, Shenae; Ottermo, Maria Vatshaug; Hauge, Stein; Håbrekke, Solfrid; Lundteigen, Mary Ann (Research report, 2023)On petroleum facilities, safety equipment is installed to obtain risk reduction. To ensure that the desired risk reduction is achieved during the operational phase, follow-up of the reliability of such equipment is important. ... -
A Risk Aspect of Periodic Testing on Pressure Relief Valves
Lee, Shenae; Barros, Anne; Lundteigen, Mary Ann; Paltrinieri, Nicola (Peer reviewed; Journal article, 2022)A pressure relief valve (PSV) is a key safety barrier to prevent the catastrophic rupture of pressure equipment in a process plant. The safety function of a PSV is to open and relieve the pressure when the equipment pressure ... -
Safety performance of hazardous systems: Approaches to risk estimations for operations and design
Lee, Shenae (Doctoral theses at NTNU;2020:134, Doctoral thesis, 2020)Safety of chemical and petroleum process installations have received increased legislative and academicattention in most countries, to enhance protection for people from adverse effect of activities involving materials ... -
Towards standardized reporting and failure classification of safety equipment: Semi-automated classification of failure data for safety equipment in the operating phase
Lee, Shenae; Ottermo, Maria Vatshaug; Hauge, Stein; Lundteigen, Mary Ann (Peer reviewed; Journal article, 2023)Safety instrumented systems (SISs) are installed on process plants to protect against undesired events like e.g., gas leakage and overpressure. A SIS has reliability requirements that are determined during design, and ... -
Validation of Dynamic Risk Analysis Supporting Integrated Operations Across Systems
Lee, Shenae; Landucci, Gabriele; Reniers, Genserik (Journal article; Peer reviewed, 2019)Dynamic risk analysis (DRA) is a novel industrial approach that aims to capture changes in operational conditions over time and quantify their effect on risk. This aspect may be advantageous for providing insight into the ...